Printing- machine



March 13, 1928.

11,662,689 W. H. WALDRON ET AL PRINTING MACHINE Filed Oct. 18. 1926 5 Sheets-Sheet l 5 Sheets-Shge'et 2 W. H. WALDRON ET AL PRINTING MACHINE Filed 001.. 18, 1926 March 13,1928.

March 13,1928. 6 1,662,689

W. H. WALDRCJN ET AL PRINTING MACHINE Fild Oct- 18, 1926 5 Sheets-Sheet s iSheets-Sheet 4 W H WALDRON ET AL PRINTING MACHINE Flled Oct 18 1926 March 13, 1928.

Patented Mar. 13, 1928.

UNETE STATES FATENT @FFEFE.

WILLIAM H. WALDBON AND LYNN B. CASE, OF NEXV BRUNSWICK, NEW JERSEY, AS-

SIGN OBS TO JOI-INVWALDRON CORPORATION, OF NEW BRUNSWICK, NEW JERSEY, A

CORPORATION OF NEW JERSEY.

PRINTING MACHINE.

Application filed October 18, 1926. Serial No. 142,331.

Our invention relates to printing machines of the multi-color type such as those employed in printing'a design upon the precoated surface of floor coverings, etc, especially those of the larger proportions, for ex ample, a single piece rugv nine feet by twelve feet.

A machine constructed in accordance with the principles of our invention comprises a plurality of substantially identical printing units; and each unit comprises a printing roll of such diameter that the color applied by the printing roll thereof will be applied to a full rug by a single revolution of the printing roll, thus the range of design is unlimited, as no repeats are necessary to complete the full rug as in the machines in use at the present time. Each unit also includes the necessary color pan and rolls for applying the. color to the print roll.

The details of construction of the print roll employed in our improved printing machine are described and claimed in our copending application, Serial No. 140,497 filed October 9, 1926.

The details of our improved printing machine will be fully disclosed hereinafter, reference being had to the accompanying drawings, of which:

Fig. 1 is a plan view of our improved printing machine;

Fig. 2 is a side elevation of the machine;

Fig. 3 is an enlarged side elevation of one of the printing units;

Fig. 4 is an end elevation of the mechanism shown in Fig. 3;

Fig. 5 is a longitudinal sectional elevation taken on the line 55 of Fig. 4; and

Fig. 6 is a transverse sectional elevation taken on the line 66 of Fig. 3.

Referring to Figs. 1 and 2 of the drawing, our improved printing machine comprises a plurality of printing units 1, 1 coupled in tandem and provided with a feeding unit 2 at one end. 7

Each printing unit 1 comprises a main frame consisting of side members 3 and 4. suitably and rigidly spaced apart by cross ties 5, 5 Secured to each of the side frames 3 and 4 is afbearing standard 6 and 7 respectively. Each bearing bracket is pro vided with'a' vertical channelS having a flange 9 extending around the two vertical sides and the bottom of the said channel 8,

A printing roll 10 is suitably mounted on a supporting shaft 11 which is journaled in bearing blocks 12, 12 mounted in the channels 8, 8 of the standards 6 and, 7 respectively. Filler blocks 13, 13 and 14 are disposed in the channels 8 intermediate the base thereof and the bearing blocks 12, 12. The filler blocks 14 are each provided with a jack screw 15 which bears against the lower side of the respective bearing blocks 12 for adjusting, aligning and levelling the printing roll 10 in a vertical plane. Each bearing standard 6 and 7 is provided with a cap plate 17 which spans the open end of the channel 8. Each bearing block 12 has a lifting eye 18 secured in its upper face and extending through the cap plate 17, by means of which the print rolls may be removed from the machine. 4]

The bearing blocks 12 are permitted a limited amount of horizontal longitudinal movement in the channels 8, and adjusting screws 16, 16 are adapted to threaded aper .has a head 102 positioned in a socket 103 formed adjacent the end of the shaft 11 in a manner permitting the said shaft to rotate relative to the said screw 101. Nuts 104 are provided on the screw 101 and engage the inner and outer faces of the bridge element 100 whereby the shaft 11 and the print roll 10 may be adjusted transversely of the machine.

Immediately below each print roll 10 is an impression roll 20 which is secured to a shaft 21 rotatably mounted in a lever 22, at each of its ends. The levers 22, 22 are each pivoted at 23 to the side frames 3 and 4 respectively and the projecting end of each .lever is engaged by the end of an adjusting screw 24 which is mounted in a block 25 pivoted to one end of an arm 26. The opposite end of each arm 26 surrounds an eccentric 27 secured to a transverse shaft 28 which is rotatably mounted in the side frames 3 and 4, which is provided adjacent the frame 3 with a hand lever 29, by means of which the impression roll may be quickly released from its operative position relative to the respective print roll 10. 'By the above described mechanism, the relative position of the impression roll 20 may be minutely adjusted and, aligned with respect to the said print roll.

Coloring matter is applied to each. of the print rolls 10 by means of a suitable color roll 30 which engages the printing face of the respective roll 10, and also is engaged by a feed roll 31. The bottom of the feed roll 31' lies within a color pan 32 which, together with" the feed roll 81 and the color roll 80, extends transversely'of the machine, the full length of the print roll 10.

The color pan 32 forms the intermediate member of a color-carriage 33, the end 1nembers which comprise primary slides 3 1, 34 which are adapted to slide on extension members 8* and et of the side frames 3 and 4t respectively. Each primary slide 34: is provided with a downwardly extending flange85 adapted to slidably interlock with a lateral flange 36 of the respective frame extensions and has formed on its lower edge a gear rack 37, the teeth of which mesh with the teeth of a gear 38. The gears 38, 38 are each secured to a transverse shaft 39 which is rotatably mounted in the said frame extensions and is provided, adjacent the frame extension 3 with a hand wheel 40 by means of which the color carriage 33 may be moved longitudinally of the machine to accommodate print rolls of different diameters.

' Each color roll 30 is secured to a shaft 4-1 rotatably mounted at each of its ends in a secondary slide member 42 which has a dovetailed slidingconnection 43 with the respec-- tive primary slide 34: of the color carriage *Eaeh feed roll 31 is provided with trunnions 4A rotatably mounted each in a hearmg 1-5 slidably mounted on the said secondary slide 12, a dove-tailed connection 46 be ing provided therebetween. An adjusting screw 47 is rotatably mounted in a lug on the said secondary slide 42 and is threaded into the slidable bearing 15, whereby the feed roll 31 may be adjusted relative to the colorroll 80.

The secondary slides 42, and consequently the color roll 80 and the feed roll 31, may be moved relative to the primary slides 34;, 3 1 and color pan 32 for effecting a quick release of the color roll 30 from the print roll 10, by means of a hand lever 50. The hand lever 50 is secured to the end of a shaft 51 adjacent the frame extension 3 The shaft 51 is rotatably mounted in bearings 52, 52 secured" to the respective primary slides 3 1 and adjacent each bearing 52 an eccentric 53 isseeured to the shaft 51. A lever 54 has one of its ends surrounding the respective eccentric 53, and its opposite end pivoted to an adj'ustin-ghead 56 dove-tailed to and through the machine by means of tapes 60,- I

.60 which pass around tape wheels 61, 61 and 62, (32 at the opposite ends of the machine.

The tape wheels 61, 61 are secured to a transverse shaft 63 rotatably mounted in journal blocks 6-1, G l which are slidably mounted in side frames 65 and 66 which are connected to the first printing unit side frame extensions 3= and 4 respectively. Tightening screws 67, 67 are threaded into the journal blocks 64, 64 at one end, and are rotatably mounted inbearings 68, 68 at their opposite ends and are held therein against axial movement, A bevelled pinion 69 is secured'to the end of each tightening screw 67 and meshes with a beveled pinion 70 secured to a transverse shaft 71 adjacent each of the side frames 65 and 66. A hand wheel 7 2 is secured to the shaft 71 adjacent the side frame 65.

The feed tapes are provided with pins 7 3 which are spaced apart throughout the entire run of the tapes and are adapted to pierce the material to be printed adjacent theedges thereof, and at each side of the machine a shoe 7 4 is provided for riding in top of the material and pressing it onto the said pins 73.

Each tape 60 rides in. guides 75, 7 5 which extend between the impression rolls 20, 20 and the "impression roll 20 of the first printing unit and the tape wheels 61, 6.1.. The guides 75 are supported by means of brackets 76, 76 secured thereto and to cross braces 77, 77 which extend between the side frames of the machine. The oppositely disposed brackets 76, 76 are connected by angle bars 7 8 which support a table 79 ii'itermediat-e the tapes 60, (30 over which the material to be printed is moved by the tapes.

Secured to each print rollshaft 11 is a' gear wheel 80of equal diameter with the printing face of said roll, which meshes with a gear wheel 81fof equal diameter with the face of the impression roll 20 and secured to-the shaft 21 thereof. Thus the print roll 10 and the impression roll 20 rotate at equal surface speeds.

Secured indirectly to each print roll shaft 11 is a second gear 82 which meshes with a gear 83 secured to a short shaft 84 rotatably mounted in the side frame 3 and an extending bearing bracket 85. A worm wheel 86 is also secured to the shaft 84 and meshes with a worm 87 on a lay shaft 88-extending between and rotatably mounted in the brackets 85, of the printing units.

The color roll shaft 11 has secured thereto a gear 105 which meshes with the gear 82 and the feed roll 31 is driven by a gear 106 on one of the trunnions thereof which meshes with the gear 105, for driving said roll at a surface speed equal to the surface speed of the print roll 10.

Secured to'one end of the lay shaft 88 is a beveled gear 89 which meshes with a beveled gear 90 secured to one end of a transversely extending power shaft 91 rotatably mounted in the side frames 3 and 4 of the last printing unit 1, the opposite end of said shaft being provided with a pulley or other equivalent element 92.

The tape whee-ls 62, 62 are secured to a transverse shaft 93 on which is secured a' gear wheel 94 which meshes with an idler gear 95. The idler gear 95 meshes with the gear 83 and thus the tapes are moved.

v The indirect connection of the gear 82 with the shaft 11 of the print roll 10 comprises a worm wheel 96 which is secured to the said shaft 11, and a worm 97 meshing with said worm wheel 96 and being rotatably mounted on the gear 82 in bearings 98, 98.

By turning the worm 97, the print roll 10 may be rotated on the shaft 11 and thus the design on the face of the said print roll may be caused to register with the design previously printed on the face of the material,

released from the print rolls 10 by the operation of the levers 29 and the color rolls 30 may be quickly released from the print rolls 10 by the operation of the levers 50.

The registry of the designs successively printed on the web of material may be accomplished by operation of the worms 97 and the set screws 16.

Print rolls of various sizes may be placed in the machine to print a design on the web of material over an area thereof of dimensions substantially equal to those of the individual rugs to be cut from the web, and the color carriages may be moved bodily in accordance with the diameters of the print roll, by operation of the hand wheels 11.

Proper operating tension may be maintained on, the tapes 60, 60 by operation of the hand wheel 72.

\Ve claim:

' In a printing machine of the class described, a printing unit comprising side frames; a print roll rotatably mounted in said unit; a color carriage slidably mounted on said side frames and comprising primary slides, adapted to said side frames; a color pan secured to said primary slides; secondary slides slidably mounted on said primary slides; a color roll rotatably mounted in said secondary slides; a feed roll engaging said color roll; bearings slidably mounted on said secondary slides in which said feed roll is rotatably mounted; means for adjusting said sliding hearings on said secondary slides; means for adjusting said secondary slides on said primary slides; and means for moving said secondary slides and the adjusting means therefor, relative to said primary slides.

WILLIAM H. 'WALDRON. LYNN B. CASE. 

